My grandfather, a medical doctor, who died in 1972, 18 years following the award of the Nobel Prize to Drs. Crick and Watson for their watershed discovery of the nature and purpose of DNA: "This stuff in each or our cells is fragile, and I think is suspect to mutation should harmful chemistry in our bodies have access to them."
My father, a medical doctor and hospital administrator, who died in 2000, 46 years in to our understanding of DNA: "The telomeres that act as shoelace cap protectors on shoelaces that similarly protect the DNA molecule are demonstrated to breakdown an we age, and are demonstrated to do so earlier than expected with consumption of harmful substances, particularly the n that consumption occurs from early in life."
My older brother, a medical doctor, still living at 83, on the numerous studies conduct4ed over the 72 years since we continue to discover how DNA should function: "Harvard Medical School, my alma mater, has found by groundbreaking study of roughly 40M patients, all female, that consumption of harmful substances, such as cigarettes, alcohol, and excessive salt and sugar, while pregnant, can begin to affect not just their own DNA duplicative function of intended accuracy, but also can disruptive fetal development of cell nuclei my mutative effect."
I had the privilege of meeting Dr. James Watson, DNA-driven Nobel Prize winner of 1954, at UCLA, my alma mater, in 1966, one year prior to my H.S. graduation, at a lecture he conducted there on his view of the future of DNA research, and touched on its high potential for harmful mutation causing unknown results by our sloppy attitude of nutrition, but also the high potential for improving the human condition by further DNA research.
Fair enough? Yeah, pie hole verbiage, indeed. Happens to be valid.